Add 12/80 and 49/18
1st number: 12/80, 2nd number: 2 13/18
12/80 + 49/18 is 517/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
12/80 = 12 × 9/80 × 9 = 108/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
49/18 = 49 × 40/18 × 40 = 1960/720 - Add the two like fractions:
108/720 + 1960/720 = 108 + 1960/720 = 2068/720 - 2068/720 simplified gives 517/180
- So, 12/80 + 49/18 = 517/180
In mixed form: 2157/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/80+49/18 12/80+98/18 12/80+49/36 36/80+49/18 12/80+49/54 60/80+49/18 12/80+49/90 84/80+49/18